18.7.1. Joint Preparation

Try these first

1. 1.

   What is the primary purpose of joint preparation?

   Hint

   Think about why we clean surfaces before painting or sealing.

2. 2.

   Name one method to clean joint surfaces.

   Hint

   Consider what tools might blow dirt away.

3. 3.

   What is the main reason for cleaning joint surfaces?

   • To make them look better
   • To ensure proper adhesion of sealants
   • To prevent cracking of concrete

   Hint

   Think about why painters clean walls before painting.

4. 4.

   True or False: A primer is always necessary when sealing joints.

   • True
   • False

   Hint

   Consider if every painting project uses primer.

5. 5.

   If you were to encounter a case where sealants consistently fail to adhere in a certain area, analyze the possible joint preparation mistakes that could have been made. What steps would you recommend to troubleshoot the issue?

   Hint

   Consider each step and what could have gone wrong.

6. 6.

   Design a quality control checklist for joint preparation before the application of sealants. What items should be included to ensure optimal bonding?

   Hint

   Think about what ensures the surface is ready for sealing.